Math 版 (精华区)
发信人: wanderer (海王星的小鱼), 信区: Math
标 题: Nonlinear Science FAQ(16)
发信站: 紫 丁 香 (Mon May 15 21:37:50 2000), 转信
What is a Cantor set?
A Cantor set is a surprising set of points that is both infinite
(uncountably so, see [2.14]) and yet
diffuse. It is a simple example of a fractal, and occurs, for example as
the strange repellor in the
logistic map (see [2.15]) when r>4. The standard example of a Cantor set
is the "middle thirds" set
constructed on the interval between 0 and 1. First, remove the middle
third. Two intervals remain,
each one of length one third. From each remaining interval remove the
middle third. Repeat the
last step infinitely many times. What remains is a Cantor set.
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